(15 Apr 2014, 8:45 am)tyresmoke wrote M11 will be an Aberdeen based Astromega, one of the original batch. The Cardiff-London (M7?) could be anything from an Astro to an Elite to a Panther. The Citylink coaches don't have plug sockets, the Gold Elites do though.
M11 could be either one of Aberdeen's TD927s (50227-32) or one of their TDX27 (50244-50).